Sure. I am just saying that when someone makes the assertion that god exists, they are claiming they "know". This is different from making the claim that they "believe" god exists.
I was just clarifying the difference between belief and knowledge.
I do not claim to "know" there is no god. I just don't "believe" there is at this point. Claiming you "know" one way or the other is claiming certainty. And there are very few things that we can claim for absolute certain.
Then perhaps we can pin down our terms, or at least I can pin down mine for the sake of clarification.
I am holding a pen in my hand. I am willing to say that I know if I let go it is going to fall to the floor. Technically, one could call this more of a prediction than knowledge and that I do not actually know until after the fact. But for the purposes of this discussion, I think saying I know is ok.
Take that to my truck. I am sure that when I go down there it will start when I turn the key. Is it possible it won't, yep. But I know how I take care of it and I am quite confident it will start. That is not knowledge but it is a valid conclusion based upon hard evidence.
Now we go to God. I have no idea what evidence would demonstrate the existence or non-existence of God. I don't even know what God is. So any position I might take on it is a blind guess based upon no evidence of any sort. This is what I mean when I talk about belief. It is a position made without any evidence to support it.
That is how I see the difference between knowledge, a valid conclusion and a belief. Nowhere in that is there any distinction between positive or negative. Whether I say I know something is or I know it is not, the same level of evidentiary support is required.